Cash-indicator



(No Model.) 2 Sheets-Sheet 1. T. SOHUMANN.

CASH INDICATOR. No. 438,089.

Patented Oct. '7, 1890.

(N0 Model.) 2 Sheets-Sheet 2.

' T. SGHUMANN.

CASH INDICATOR Patented Oct. '7, 1890 UNITED STATES PATENT OFFICE.

THEODORE SCHUMANN, OF ATLANTA, GEORGIA.

CASH-INDICATOR.

SPECIFICATION forming part of Letters Patent No. 438,089, dated October '7, 1890. Application filed December 31, 1889. Serial No. 885,580. (No model.)

To all whom it may concern.-

Be it known that I, THEODORE SCHUMANN, a citizen of the United States, and a resident of Atlanta, in the county of Fulton and State of Georgia, have invented certain new and useful Improvements in Cash-Indicators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The invention relates to improvements in adding-machines, pertaining more particularly to cash-indicators; and it consists in the construction and novel combination of parts hereinafter described, and pointed out in the claims hereto appended.

In the accompanying drawings, in which similar letters of reference designate corresponding parts, Figure 1 represents a front View of a part of a device embodying the invention. Fig. 2 represents an end view thereof as seen from the right in Fig. 1. Fig. 3 represents a face view of one of the vertical rack-bars and adjacent parts. Fig. 4 is a detail broken plan of the parts shown in Fig. 3. Fig. 5 represents a broken side view of some of the keys extended outward beyond their pivotal shaft. Referring to the drawings by letter, A designates a disk or wheel mounted loosely on a longitudinal shaft a having bearings (not shown) in the casing or frame of the device and having on its outer side a ratchet-wheel a, provided with equal sized equidistant teeth, as shown in Fig. 1. The wheel A has on its inner side a ratchet-wheel a having teeth spaced just twice as far apart as those of the ratchet-wheel a and register with every second tooth of said wheel.

The disk A has marked upon its periphery the figures O 5 O 5, spaced equidistantly and alternating with each other. The said figures are equal in number to the teeth of the ratchet-wheel a, and are so arranged that each will present itself horizontally opposite the shaft 0 (so that it could be seen through a glass-covered opening in the front of a suitable casing,

not shown) when the ratchetwheel a is rotated the length of a certain tooth that corresponds with said number. The said ratchet-wheel is prevented from slipping backward or reversing its motion by means of a spring-pawl :0, the end of the shank of which is secured to the rear wall of the casing.

C is a key, being one of a bank mounted on the longitudinal pivotal shaft K, which has suitable bearings (not shown) in the sides of the casing, and D is a vertical rack-bar having but one tooth and pivoted at its lower end to the inner arm of said key. The said rack-bar has secured to its rear the plate d, that enters and moves between the facing flanges of the guide-block E, attached to the rear wall of the casing, and thereby keeps the rack-bar in position.

The parts are so constructed and arranged that when the key O is depressed its tooth will engage the ratchet-wheel a and rotate the latter the distance of one tooth. cis a coiled spring connecting said key and rack-bar and returning them to their normal positions.

F is a pawl having the point f to engage the teeth of the ratchet-wheel a and the rear arm f and shoulder f, for purposes hereinafter explained. The said pawl is pivoted upon a bracket H, secured to the rear wall of the casing.

A is a long ratchet-cylinder loosely mounted on the shaft a, equal in diameter to the disk A and having an equal number of teeth thereto, and with its teeth registering with those of the said disk. On the end of said ratchet-cylinder opposite that facing the disk A is a similar disk B, having its periphery marked with a series of equidistant figures, each series extending from O to 9. These figures are equal in number to the alternating figures O 5 on the disk A and register therewith, the two disks being of equal diameter.

The disk 13 has on the side opposite the ratchet-cylinder a ratchet-wheel I), provided with teeth I) opposite each figure 0 on the disk. G G are similar wheels mounted loosely on a horizontal shaft 9', having bearings secured to the casing. Each wheel G G has an arm g extending rearward and having a block 9 secured to its lower surface. Against the block g", attached to the arm of the wheel G, the upper end of the rack-bar ICO D can impinge when the key is depressed, thereby partially rotating the wheel G and putting the coiled spring g", which connects said block and the bracket H, under tension.

The wheel G has on its periphery a stop g to impinge against a bracket I, depending from the top of the casing for the purpose of preventing the wheel G from rotating too far. 9 is a pin extending laterally outward from the rim 'of the wheel G and adapted to engage either against the end of the rear arm f of the pawl F or against the shoulder f thereof, and g is a pawl pivoted to said rim on the opposite side to thevpawl F and slightly in rear thereof. The said pawl 9 engages the teeth of the ratchet-cylinder A. When the arm g is raised and the spring g" is put under tension by the ascent of the rackbar D, the wheel G is rotated far enough to carry the pin 9 to the rear of the arm f of the pawl F, against the end of which arm said pin engages, thereby maintaining the tension of the spring; but when a tooth of the ratchet a passes under the pawl F the arm f is depressed, the pin g escapes from said arm, and the tension of the spring 9 causes the wheel G to partially rotate forward and carry the pin 9 against the shoulder f. This movement causes the pawl g to rotate the ratchet-cylinder A the distance of one tooth and thereby move the disk B just far enough for a figure one unit higher to show through a glass-covered opening (not shown) of the front of the casing than the figure before appearing therethrough.

The teeth of the ratchet-Wheel a being spaced twice as far as the teeth of the ratchetwheel a and corresponding to the figures O on the disk A, it is evident that when a cipher or 0 is disclosed by said disk the disk B will disclose one unit higher than before; but when a 5 is disclosed by the former disk the latter disk will not be moved. Thus the action of the rack-bar D and key 0 is to add fives.

The construction of the wheel G, pawls F, and bracket H, and the spring, stop, and pin attached to said parts, is similar to that of the parts described connected with the wheel G; but as the ratchet-wheel b has but one tooth b for every ten of the ratchet-cylinder A, and those teeth being situated opposite or corresponding with the ciphers on the disk B, it is evident that the pawl 9 that engages the teeth of the second ratchet-cylinder A, will move said cylinder only one tooth to every ten that the ratchet-cylinder A moves, and that that movement will be made when the disk B discloses one of its ciphers, so that the disk B, being a tens-disk, a similar disk, (notshown,) similarly attached to the ratchetcylinder A", would be a hundreds-disk.

It is evident that a thousands-disk could be similarly attached to themachine and actuated by means similar to those described.

To add by more than fives, the keys 0, similar to the keys 0, and therack-bars D, generally similar to the rack-bar D, are added to the machine by mounting them upon the shaft K. The rack-bars D from right to left, preferably, are respectively provided with two, three, four, and so on up to nine teeth, and as said teeth engage those of the ratchetcylinder A the said rack-bars will respectively rotate the said ratchet-cylinder to the distance of'the number of teeth each passes, so that adding may be done by tens, twenties, and so on.

To add by uneven multiples of five, such as fifteen or twenty-five, the keys and keylevers O are mounted on the shaft Kbetween the keys and key-levers O, and each of the former is provided with a-lateral arm j that rests below the inner arm of the lever of the adjacent corresponding key 0.

j is a bracket secured to the rear side of the rack-bar D, and J is a horizontal upwardlymovable bar, moving in ways or guides (not shown) attached to the casing or pivoted at one end to the same and resting on the rear ends of the key-levers C in rear of the rackbar D.

When any one of the key-levers C is depressed,it will by means of the arm j move upward the inner arm of the adjacent corresponding key-lever G and will also lift the bar J, which, engaging against the bracket j, will lift the rack-bar D and add five units more to the sum than if the corresponding key and key-lever C were alone used.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-- 1. In an addingmachine or calculator, the

combination, with the key 0 and rack-bar D,

provided with a single tooth pivoted at its lower end to the key-lever and directed by the guide E of the disk A, having the equidistant figures 0 5 marked alternately on its periphery, the ratchet-wheel a on one side of said disk having an equal number of teeth to that of said figures and rotated the distance of one tooth at each upward movement of the rack-bar, the ratchet-wheel a on the opposite side of the disk having its teeth spaced twice the distance of those of the ratchet-wheel a and corresponding with the ciphers on the disk A, the ratchet-cylinder A,

having the same number of teeth as the disk A, the pawl g engaging with said cylinder, the spring-actuated wheel G, carrying said pawl, and the pawl F, pivoted on a bracket H and engaging the ratchet-Wheel a, substan tially as specified.

2. In an adding-machine or calculator, the combination of the disk A, having the alternate numbers 0 5 O 5 on the periphery, the vertically-moving one-toothed rack-bar D,

the ratchet-wheelsa' and a on opposite sides of the said disk, the former having twice as many teeth as the latter, the ratchet-cylinder A, having the same number of teeth as the disk A, and the disk B on the said ratchet-cylinder, and havingthe series of equidistant figures extending from 0 to 9 marked on its periphery, the wheel G, provided v with the pin g and arm g, the block g, the spring 9, connecting said arm to the bracket H, the pawl F, having the rear arm f and shoulder f and engaging the ratchet-Wheel a, and the pawl 9", pivoted to the wheel G and engaging the ratchet-cylinder A, substantially as specified.

3. The combination of the disk A, having alternate numbers 0 5 O 5 on its periphery, the ratchet-wheels ct and 0"" on opposite sides of the said disk, the former having twice as many teeth as the latter, the ratchet-cylinder A, having the same number of teeth as the disk A, the mechanism for transmitting motion from the disk A to the cylinder A, 

